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trace/simple: add st_init_group
Add helper function and call it for each trace event group added. Makes sure that events added at module load time are initialized properly. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 20210601132414.432430-6-kraxel@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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@ -82,6 +82,10 @@ void trace_event_register_group(TraceEvent **events)
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event_groups = g_renew(TraceEventGroup, event_groups, nevent_groups + 1);
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event_groups[nevent_groups].events = events;
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nevent_groups++;
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#ifdef CONFIG_TRACE_SIMPLE
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st_init_group(nevent_groups - 1);
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#endif
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}
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@ -422,3 +422,15 @@ bool st_init(void)
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atexit(st_flush_trace_buffer);
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return true;
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}
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void st_init_group(size_t group)
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{
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TraceEventIter iter;
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if (!trace_writeout_enabled) {
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return;
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}
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trace_event_iter_init_group(&iter, group);
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st_write_event_mapping(&iter);
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}
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@ -15,6 +15,7 @@ void st_print_trace_file_status(void);
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bool st_set_trace_file_enabled(bool enable);
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void st_set_trace_file(const char *file);
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bool st_init(void);
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void st_init_group(size_t group);
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void st_flush_trace_buffer(void);
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typedef struct {
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